Free Tools for Creators and Businesses
Finding reliable and free tools for specific tasks can streamline workflows and reduce costs. QuackBuilds offers a suite of free browser-based applications designed to help with various needs, all without requiring signup or payment.
KDP Cover Wrap Builder
The KDP Cover Wrap Builder is a free online generator for paperback and hardcover book covers. You can upload your front and back cover images, select the trim size, paper type, and page count. The tool then exports a print-ready full-bleed cover wrap PDF, with the spine sized to KDP's exact specifications. A live dieline preview shows trim, spine-fold, and barcode keep-clear guides, and all processing happens in your browser.
Open KDP Cover Wrap Builder — freeAlso free: OEE Pulse
OEE Pulse is a free shop-floor OEE dashboard for small machine shops. It tracks Availability × Performance × Quality per machine, provides a plant-wide OEE overview, and allows logging every shift to build trend data. Shift reports can be exported.
Open OEE Pulse — freeAlso free: Extinguisher Log
Extinguisher Log is a free monthly inspection log for fire extinguishers. You can add your extinguishers once and then perform the NFPA 10 six-point visual check (in place, gauge, fullness, condition, seal, label) every 30 days. The tool provides a view of the entire year's inspection history.
Open Extinguisher Log — freeAlso free: BotWarden
BotWarden is a live dashboard for Polymarket trading bots. It monitors every trade, tracks P&L and equity curves in real time with a 10-second refresh, and offers analytics such as win rate, Sharpe ratio, and drawdown.
Open BotWarden — freeEvery app here is built and maintained by QuackBuilds, runs in your browser, and is free with no account. See them all at quackbuilds.com/apps.